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WRF Version 4.1.2
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@smileMchen smileMchen released this 12 Jul 20:01
· 668 commits to master since this release
v4.1.2
04cb756

WRF Model Version 4.1.2

The WRF model has been updated to Version 4.1.2 on July 12, 2019.

Acknowledgements: We would like to thank Changhai Liu (NCAR), Nicolas Baldeck (OpenMeteoData), Emily Collier (FAU Erlangen-Nürnberg), Han Lung (Fujitsu America, Inc.), Jamie Bresch (NCAR) and Anders A. Jensen (NCAR-RAL) for their contributions to this release

This is a bug fix release. Following are fixes associated with this release.

Compiling

  • A modification was added to the compile script to print out the correct version number of the WRF model in the compile log.

Diagnostics

  • Bug fix in temperature and winds computation when the “traditional fields” diagnostics option is turned on.
    • For temperature, the moisture is incorrectly removed from the already dry potential temperature perturbation, which leads to a cooler temperature that can be 8-10 K lower in locations near the surface with high moisture content.
    • For winds, when computing the earth-relative winds from the model’s projection-relative winds, both zonal and meridional winds were too large by a factor of two.

Physics

  • Logic was added to include the buckets for accumulated radiation fields when the user selects bucket_J > 0. A bug was introduced since WRFV3.9, when the user selected the bucket_J >0, no additional fields were computed or output.
  • Bug fix to ensure restart runs are reproducible in nested domains when topographic shading is turned on.
  • Bug fixes in Jensen ISHMAEL microphysics
    • Add allocation for single-precision lookup tables which are defined from the double-precision ones. Without this, certain versions of PGI throw an error.
    • Move the calculation of the inherent growth ratio to prevent it from being undefined in certain instances.
    • Store shape parameter, use it to diagnose shape during nucleation and aggregation (transfer between ice categories), and ensure that this value stays in bounds. This prevents the updated shape from going out of bounds in certain instances.
    • Move the mass check for aggregation to occur to around the aggregation subroutine call to prevent the aggregate diagnostics from being undefined.
    • Add a fix to ensure that nucleation won't turn planar particles into columnar ones by limiting this shape to spherical.
    • Set a low limit on nucleation size to 2 microns.

Data Assimilation:

  • Fix to allow proper QVAPOR analysis when mp_physics is not set in namelist.input.
  • Fix WRFDA V4.1.1 serial compilation failure.
  • Fix WRFDA 4DVAR V4.1.1 compilation failure.
  • Fix Radar DA memory leak. Some allocated arrays for radar were not deallocated.
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